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Finding the Fourth Proportional to 125,365.52, 188,010.84 and 66,168.56

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Solution

The fourth proportional to 125,365.52, 188,010.84 and 66,168.56 is: 99,233.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,365.52 : 188,010.84 = 66,168.56 : x
  2. Step 2: Convert to fraction form
    125,365.52/188,010.84 = 66,168.56/x
  3. Step 3: Cross multiply
    125,365.52x = 188,010.84 × 66,168.56
  4. Step 4: Simplify right side
    125,365.52x = 12,440,406,547.19
  5. Step 5: Solve for x
    x = 12,440,406,547.19/125,365.52
  6. Step 6: Final answer
    x = 99,233.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.